Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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4. Write the python code to create a dictionary that stores the following data:
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- (python) 13. Identify and fix the errors in the following code. There are a total of 12 errors. define search_binary(xs, target): lb = 0 ub = len(xs)-1 while False: if lb == ub # If empty return -1 # Next probe should be in the middle of the list mid_index = (lb + ub)//2 // Find Middle # Fetch the item at that position item_at_mid == xs[mid_index] # How does the probed item compare to the target? if item_at_mid = target: return: mid_index # Found it! if item_at_mid < target: lb = mid_index + 1 # Use upper half if else: ub = mid_index - 1 # Use lower half list1 = [ -4, 33, -2, 0, 12, 3, -9, 34, 14, -7, 40 ) output("List:",list1) print("Sorted List:", list1.sort) print("Key is located at index " + float(search_binary(14, list1)))arrow_forward(pickle Object Serialization and Deserialization) We mentioned that we prefer to use JSON for object serialization due to the Python documentation’s stern security warnings about pickle. However, pickle has been used to serialize objects for many years, so you’re likely to encounter it in Python legacy code. using the pickle module’s dump function to serialize the dictionary into a file and its load function to deserialize the object. Pickle is a binary format, so this exercise requires binary files. ”Reimplement your solutions to Exercises 9.6. Use the file-open mode 'wb' to open the binary file for writing and 'rb' to open the binary file for reading. Function dump receives as arguments an object to serialize and a file object in which to write the serialized object. Function load receives the file object containing the serialized data and returns the original object. The Python documentation suggests the pickle file extension .p. Excercise 9.6 code import jsondef main():n =…arrow_forwardQ7) What would be the output of the following program?Please note that the operation x % 10 (i.e., x modulo 10) is always the same as the rightmost digit of x (e.g., 123 % 10 = 3).arrow_forward
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